<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>虚拟和真实</title>
</head>

<body>
<!-- 创建test -->
<div id="test">

</div>
<!-- 引入核心库 -->
<script src="../js/react.development.js"></script>
<!-- 引入react操作DOM支持库 -->
<script src="../js/react-dom.development.js"></script>
<!-- 引入babel 用于将jsx转为js -->
<script src="../js/babel.min.js"></script>
<script type="text/babel">  // 此处引入一定要写babel
// 1. 创建虚拟DOM
const VDom = <h1 id="title">
  <span>hello World</span>
</h1> // 此处不用写引号,因为此处不是字符串
// 2. 渲染虚拟DOM到页面
ReactDOM.render(VDom, document.querySelector("#test"))
</script>
</body>

</html>